Crawler-type tractor

Abstract

The utility model provides a crawler-type tractor which comprises a machine frame, an engine and a walking gearbox are respectively arranged on the machine frame, one end of the engine is provided with an output shaft and is connected with the walking gearbox through the output shaft, two sides of the machine frame are respectively provided with a drive axle, and the drive axles are connected with the walking gearbox through the output shaft. The two drive axles are respectively connected with the walking gearbox, one end of each drive axle is further provided with a detachable drive wheel, and when the walking gearbox works, the two drive axles respectively drive the two drive wheels to rotate; the crawler-type tractor further comprises two sets of crawler belt assemblies of the same structure, the two sets of crawler belt assemblies are arranged on the two sides of the rack respectively, each crawler belt assembly comprises a rotatable crawler belt, and the crawler belts are arranged on the driving wheels in a sleeving mode. Compared with a crawler-type tractor of an existing structure, the crawler-type tractor of the structure has the advantages of being more compact in structure and convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a crawler type tractor. Background Art

[0002] In recent years, with the continuous development of economy and technology, tractors of various structures, including crawler and wheeled types, have been increasingly widely used in agricultural production activities.

[0003] Crawler tractors, or tractors that move on tracks, are widely used to drive agricultural equipment such as rotary tillers and seed drills due to their excellent maneuverability, allowing them to navigate rough terrain and muddy areas. Currently, widely used crawler tractors come in a variety of designs, but they often suffer from shortcomings such as limited compactness, inconvenient installation and maintenance, and insensitive braking and steering.

[0004] In summary, how to provide a crawler tractor with a more compact structure, convenient disassembly and maintenance, and more sensitive braking and steering has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a crawler tractor which has a more compact structure, is convenient for assembly and disassembly and maintenance, and has more sensitive braking and steering.

[0006] The present invention achieves this solution by providing a crawler tractor comprising a frame, an engine and a travel gearbox mounted on each frame. The engine has an output shaft at one end connected to the travel gearbox via the output shaft. A drive axle is mounted on each side of the frame, and the two drive axles are connected to the travel gearbox. Each drive axle has a detachable drive wheel at one end. When the travel gearbox is in operation, the two drive axles drive the two drive wheels to rotate. The crawler tractor also comprises two identical crawler assemblies, each mounted on either side of the frame. Each crawler assembly includes rotatable crawlers mounted on the drive wheels. In operation, power is transmitted from the engine to the travel gearbox, then to the drive axles, and further to the drive wheels. The drive wheels then drive the crawler tracks to rotate, thereby enabling forward or reverse movement. Compared to existing crawler tractors, this crawler tractor has the advantages of being more compact and easier to assemble and disassemble, as well as to maintain.

[0007] Another technical solution of the present invention is that, based on the above, the crawler tractor further includes a brake pump arranged on the frame, and the brake pumps are respectively connected to the two driving wheels and can brake the two driving wheels respectively.

[0008] Another technical solution of the present invention is that on the basis of the above, the crawler assembly also includes a fixed frame, one end of the fixed frame is provided with a plurality of load-bearing wheels, and the other end of the fixed frame is rotatably arranged on the side of the driving wheel away from the frame.

[0009] Another technical solution of the present invention is that, based on the above, a plurality of load-bearing wheels are rotatably arranged on the fixing frame, and a guide wheel for guiding is further provided at one end of the fixing frame.

[0010] Another technical solution of the present invention is that, based on the above, the crawler belt is respectively mounted on the guide wheel and the load-bearing wheel, and when the driving wheel rotates, the crawler belt is driven to rotate.

[0011] Another technical solution of the present invention is that, based on the above, a power take-off gearbox is further provided on the frame, and the power take-off gearbox is arranged at one end of the travel gearbox.

[0012] Another technical solution of the present invention is that on the basis of the above, the crawler tractor also includes an input shaft, the two ends of the input shaft are respectively connected to the power take-off gearbox and the travel gearbox, and when the travel gearbox is working, it can provide power for the power take-off gearbox.

[0013] Another technical solution of the present invention is that, based on the above, the crawler tractor further includes a rotary tiller, and the rotary tiller is arranged at the end of the power take-off gearbox away from the travel speed phase.

[0014] Another technical solution of the present invention is that on the basis of the above, the crawler tractor also includes a transmission shaft, one end of the transmission shaft is connected to one end of the power take-off gearbox, and the other end of the transmission shaft is connected to the rotary tiller.

[0015] Another technical solution of the present invention is that on the basis of the above, the crawler tractor also includes a lifting mechanism for lifting the rotary tiller, one end of the lifting mechanism is movably connected to the frame, and the other end of the lifting mechanism is movably connected to the rotary tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0017] Figure 1 The utility model is a structural schematic diagram of a crawler tractor.

[0018] The corresponding relationship of the reference numerals is:

[0019] 1 Engine 2 Brake pump 3 Steering lever

[0020] 4th gearshift lever 5th main gearshift lever 6th travel gearbox

[0021] 7 Input shaft 8 Power take-off lever 9 Lift lever

[0022] 10 Power take-off gearbox 11 Lifting mechanism 12 Drive shaft

[0023] 13 Rotary tiller 14 Fixed frame 15 Driving wheel

[0024] 16 load-bearing wheels 17 tracks 18 guide wheels

[0025] 19 frame 20 drive axle DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings. The description in this section is merely exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention. In addition, those skilled in the art can combine the features in the embodiments and different embodiments of the present invention accordingly based on the description of this document.

[0027] The embodiments of the present invention are as follows, see Figure 1 The crawler tractor shown in the figure specifically includes a frame 19, on which an engine 1 and a travel gearbox 6 are mounted. An output shaft is provided at one end of the engine 1 (i.e., the right end shown in the figure), and is connected to the travel gearbox 6 via the output shaft. A drive axle 20 is also provided on each side of the frame 19. The two drive axles 20 are connected to the travel gearbox 6, and each drive axle 20 has a detachable drive wheel at one end. When the travel gearbox 6 is in operation, the two drive axles 20 drive the two drive wheels to rotate. The crawler tractor also includes two sets of identical track assemblies, one on each side of the frame 19. The track assemblies include rotatable tracks 17, which are mounted on the drive wheels. In this crawler tractor structure, when in operation, power is transmitted from the engine 1 to the travel gearbox 6, then to the drive axles 20, and further to the drive wheels. The drive wheels then drive the tracks 17 to rotate, thereby achieving forward or reverse movement. Compared with the crawler tractor of the existing structure, it has the advantages of more compact structure and convenient disassembly, assembly and maintenance.

[0028] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1 The crawler tractor shown in the figure further includes a brake pump 2 arranged on the frame 19. The brake pump 2 is connected to the two driving wheels respectively. When working, the brake pump 2 can brake the two driving wheels respectively as needed.

[0029] On the basis of the above embodiment, in another embodiment of the present invention, Figure 1 As shown, the crawler track assembly also includes a fixed frame 14, one end of the fixed frame 14, that is, the lower end shown in the figure is provided with a plurality of load-bearing wheels 16, and the other end of the fixed frame 14, that is, the upper end shown in the figure is rotatably arranged on the side of the driving wheel away from the frame 19, that is, the outer side of the driving wheel.

[0030] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1 As shown, a plurality of load-bearing wheels 16 are rotatably arranged on the fixing frame 14. One end of the fixing frame 14, that is, the left end shown in the figure, is also provided with a guide wheel 18 for guiding.

[0031] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1 As shown, the crawler belt 17 is respectively mounted on the outer sides of the guide wheel 18 and the load-bearing wheel 16. When the driving wheel rotates, the crawler belt 17 is driven to rotate, thereby realizing the forward or backward movement of the crawler tractor.

[0032] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1 As shown, a power take-off (PTO) gearbox 10 is also provided on the frame 19. The power take-off gearbox 10 is arranged at one end of the travel gearbox 6, that is, the right end shown in the figure.

[0033] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1 As shown, the crawler tractor also includes an input shaft 7, the two ends of which are respectively connected to the power take-off gearbox 10 and the travel gearbox 6. When the travel gearbox 6 is working, it can provide power to the power take-off gearbox 10, thereby driving the power take-off gearbox 10 to work.

[0034] On the basis of the above embodiment, in another embodiment of the present invention, Figure 1 As shown, the crawler tractor further includes a rotary tiller 13, which is arranged at the end of the power take-off gearbox 10 away from the travel speed phase, that is, the right end shown in the figure.

[0035] On the basis of the above embodiment, in another embodiment of the present invention, Figure 1As shown, the crawler tractor further includes a transmission shaft 12. One end of the transmission shaft 12, i.e., the left end shown in the figure, is connected to one end of the power take-off gearbox 10, i.e., its right end. The other end of the transmission shaft 12, i.e., the right end shown in the figure, is connected to a rotary tiller 13. During operation, power is transmitted to the transmission shaft 12 via the power take-off gearbox 10, and then transmitted to the rotary tiller 13 through the transmission shaft 12, thereby driving the rotary tiller 13 to operate.

[0036] On the basis of the above embodiment, in another embodiment of the present invention, Figure 1 As shown, the crawler tractor further includes a lifting mechanism 11 for lifting a rotary tiller 13. One end of the lifting mechanism 11, i.e., the left end shown in the figure, is movably connected to the frame 19, and the other end of the lifting mechanism 11, i.e., the right end shown in the figure, is movably connected to the rotary tiller 13. During operation, the lifting mechanism 11 can lift or lower the rotary tiller 13 in real time as needed.

[0037] In addition, the crawler tractor also includes components such as a main gearbox, a sub-gearbox, a steering joystick 3, a sub-speed shift joystick 4, a main speed shift joystick 5, a power take-off joystick 8, and a lifting joystick 9. Their structure and setting methods can refer to existing and improved technologies and will not be repeated here.

[0038] During operation, the crawler tractor with the above-described structure transmits power via the engine 1 to the travel gearbox 6, which then transmits it to the drive axle 20, and further to the drive wheels. The drive wheels then rotate the crawler tracks 17, thereby achieving forward or reverse movement. During travel, the brake pump 2 can also be used to brake one of the drive wheels as needed to achieve left or right steering. Compared to existing crawler tractors, this one offers the advantages of a more compact structure, easier operation, assembly, disassembly, and maintenance, and more sensitive braking and steering.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A crawler tractor, characterized in that: The machine comprises a frame, on which an engine and a travel gearbox are respectively provided, one end of the engine is provided with an output shaft and is connected to the travel gearbox via the output shaft, a drive axle is further provided on each side of the frame, the two drive axles are respectively connected to the travel gearbox, and a detachable drive wheel is further provided at one end of each drive axle. When the travel gearbox is working, the two drive wheels are respectively driven to rotate by the two drive axles; The crawler tractor further comprises two sets of crawler assemblies with identical structures, which are respectively arranged on both sides of the frame. The crawler assemblies comprise rotatable crawlers which are sleeved on the driving wheels.

2. The crawler tractor according to claim 1, characterized in that: The crawler tractor further comprises a brake pump arranged on the frame, wherein the brake pumps are respectively connected to the two driving wheels and can brake the two driving wheels respectively.

3. The crawler tractor according to claim 2, characterized in that: The crawler track assembly further comprises a fixing frame, one end of which is provided with a plurality of load-bearing wheels, and the other end of which is rotatably arranged on a side of the driving wheel away from the frame.

4. The crawler tractor according to claim 3, characterized in that: A plurality of load-bearing wheels are rotatably arranged on the fixing frame, and one end of the fixing frame is further provided with a guide wheel for guiding.

5. The crawler tractor according to claim 4, characterized in that: The crawler belts are respectively mounted on the guide wheels and the load-bearing wheels. When the driving wheel rotates, the crawler belts are driven to rotate.

6. The crawler tractor according to claim 5, characterized in that: The frame is also provided with a power take-off gearbox, and the power take-off gearbox is arranged at one end of the travel gearbox.

7. The crawler tractor according to claim 6, characterized in that: The crawler tractor further includes an input shaft, both ends of which are respectively connected to the power take-off gearbox and the travel gearbox. When the travel gearbox is working, it can provide power to the power take-off gearbox.

8. The crawler tractor according to claim 7, characterized in that: The crawler tractor further includes a rotary tiller, which is arranged at one end of the power take-off gearbox away from the travel gearbox.

9. The crawler tractor according to claim 8, characterized in that: The crawler tractor further includes a transmission shaft, one end of which is connected to one end of the power take-off gearbox, and the other end of which is connected to the rotary tiller.

10. The crawler tractor according to claim 9, characterized in that: The crawler tractor further includes a lifting mechanism for lifting the rotary tiller, one end of the lifting mechanism is movably connected to the frame, and the other end of the lifting mechanism is movably connected to the rotary tiller.

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